This is my favorite of all time simply gorgeous and i think there is definitely your signature line it is the most beautiful one that you have done colors balance and how the flower are set that would also be such a great art print as well

I love how loose and spontaneous your line work is, it really gives the feeling of a fresh bouquet. It also reminds me of Andy Warhol's early illustrations which is a style that I think straddles vintage and contemporary sensibilities very well. I do agree with the other comments about the date and numbers being a little more cohesive but it's a very minor detail in relation to such a successful design!